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Issue No. 1

The first in a series of information-sheets keeping the call-centre
professional up to date with the latest developments in voice technologies. Brought to you by ICR Speech Solutions and Services, the UK's leading independent voice specialists.

Introduction to IVR & Speech Technologies



Automated Customer Self Service

To get a feel for the potential impact of voice technologies, just look at how popular web-based self-service has become with customers. Voice technologies now allow companies to provide self-service options with similar functionality and usability to the web over the telephone. Well-designed applications not only increase customer choice, in terms of channels and extended hours, but can also drive down costs and improve efficiency.

Why All the Interest Now?

Unprecedented numbers of companies are currently investigating or deploying these technologies. In our view a number of factors are driving this: Firstly there is pressure to reduce the cost of customer service whilst maintaining quality, to provide a competitive edge, or fend off the increasing threat of offshore outsourcing; secondly the technology can now deliver a really good user experience; finally the emergence of new open standards for the technology, especially VXML means that costs have fallen dramatically, and the technology is accessible to far more users.
The Technology Pick And Mix

In order to understand how you can build automated phone-based applications it is useful to have a basic understanding of the technology components which are available. An IVR platform is the basic enabler, and all the manufacturers are now offering systems which are compatible with the new open standards. The most basic form of interaction is DTMF (pressing the keys on the telephone handset) – this is a somewhat maligned approach, but still has a very useful role to play as a reliable data input method. One can then add speech recognition, which will allow the system to understand what the caller is saying. All meaningful dialogues are two - way, and the system can respond back to the caller using pre-recorded prompts, or a Text-to-Speech system, which enables the “voicing back” of text-strings from a database. If high levels of security, or fraud prevention are a requirement, then speaker verification adds an additional safeguard to ensure the person speaking is exactly who they claim to be. This can also simplify the identification and verification process. Finally, if the system is to enable useful transactions to take place, there will generally be some integration with back-end systems.
The End of the Line for
Recorded Prompts?


Products recently launched by text-to-speech engine vendors could signal the end of the line for voice-over artists. It is claimed that these products allow fine-tuning of text-to-speech output, such that for predicted phrases, the result is practically indistinguishable from a human voice. Where companies have a “corporate voice” it is possible to digitise this, so that it can be used for text-to-speech output whenever required.

For some companies this approach will be very useful, with the potential to speed up application deployment and deliver cost savings where large numbers of prompts, or rapidly changing content is needed. It may also provide insurance against attacks of laryngitis for the recording artist. As always one needs to take a balanced view, and consider the advantages against the extra costs of text-to-speech licences, and the role that only well-directed voice talent can play in delivering effective applications and an enjoyable experience for the caller.


ICR is the UK’s leading independent specialist for the delivery of services and technical solutions incorporating voice technologies. Should you require any further information on the topics in this document or ICR’s services and solutions please do not hesitate to contact us.

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© ICR Speech Solutions and Services Ltd 2008